[srslte-users] Attaching problems

[Justin Tallon]

Hey Aren,

Could you attach the enb logs?

Regards,
Justin

On Thu, Aug 29, 2019, 04:00 Aren Müller <aren.mueller at outlook.com> wrote:

> Hello,
> I'm new to srsLTE. I'm trying to use a LimeSDR-USB as a base station but
> the COTS UE is sending like RACH spam. I searched on internet and found
> that this guy is having the same problem
> http://www.softwareradiosystems.com/pipermail/srslte-users/2019-August/002916.html
> . I found too an old message in the list (
> <http://www.softwareradiosystems.com/pipermail/srslte-users/2017-September/001117.html>
> http://www.softwareradiosystems.com/pipermail/srslte-users/2017-November/001215.html
> ) and tried the solution changing the time_adv_samples parameters (which
> it's seems not to be defined for limesdr) and sometimes I got attach, but
> after a spam of minimal 10 RACH, and the connection was not stable.
> Nevertheless, the values that I used were chosen manually because I
> didn't find the PRACH calibration function mentioned there. I used the
> values of 30, 15, 25, 65, 68 with 25 and 50 RB.
>
> My question is: Am I in the good direction trying to change the
> time_adv_sample parameter or the problem lies everywhere else? If the
> answer is yes, where can I find this "prach calibration function"?. If the
> answer is no, where should I look to get a stable connection and not a RACH
> spam??
>
> Thanks
> Best regards,
> Aren
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